/*
 * Copyright 1999-2017 Alibaba Group Holding Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package me.itsoo.elasticbatis.parsing.druid.sql.visitor;

import me.itsoo.elasticbatis.parsing.druid.DbType;
import me.itsoo.elasticbatis.parsing.druid.sql.ast.SQLStatement;
import me.itsoo.elasticbatis.parsing.druid.sql.dialect.mysql.visitor.MySqlOutputVisitor;

public class ParameterizedOutputVisitorUtils {

    public static String parameterize(SQLStatement stmt, DbType dbType) {
        StringBuilder out = new StringBuilder();
        ParameterizedVisitor visitor = createParameterizedOutputVisitor(out, dbType);
        if (stmt.hasBeforeComment()) {
            stmt.getBeforeCommentsDirect().clear();
        }
        stmt.accept(visitor);
        return out.toString();
    }

    public static ParameterizedVisitor createParameterizedOutputVisitor(Appendable out, DbType dbType) {
        if (dbType == null) {
            dbType = DbType.other;
        }
        switch (dbType) {
            case mysql:
            case mariadb:
            case elastic_search:
                return new MySqlOutputVisitor(out, true);
            default:
                return new SQLASTOutputVisitor(out, true);
        }
    }
}
